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Authenticated Is Not Authorized: What a 9.3 Fail-Open Default in an Agent Mesh Teaches About Tool Gateways

TL;DR What was reported: On 2026-10-19, CVE-2026-103091 was published for Google OSS Agent Mesh (SAM), versions 0.1.0-alpha.1 through 0.1.0-alpha.8. It is rated CVSS 9.3 (critical) . The record describes missing authorization in the MCP proxy plus insecure defaults in the enrollment flow. The chain…

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Timeline · 1 report

  1. 2026-11-02 14:25 · DEV Community — AI
    Authenticated Is Not Authorized: What a 9.3 Fail-Open Default in an Agent Mesh Teaches About Tool Gateways

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